Removable substrate for controlling warpage of an integrated circuit package
AssigneeNVIDIA Corporation
InventorsJoseph Minacapelli, Teckgyu (Terry) Kang
Life of this patent
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Abstract
One embodiment of the present invention sets forth a technique for packaging an integrated circuit die. The technique includes bonding a first surface of the integrated circuit die to a first substrate via a first plurality of solder bump structures and bonding a second substrate to a second surface of the integrated circuit die. The technique further includes bonding the first substrate to a third substrate via a second plurality of solder bump structures and, after bonding the first substrate to the third substrate, removing the second substrate from the second surface of the integrated circuit die. The technique further includes disposing a heat sink on the second surface of the integrated circuit die.
Claims20
A method for packaging an integrated circuit die, the method comprising:
- bonding a first surface of the integrated circuit die to a first substrate via a first plurality of solder bump structures;
- bonding a second substrate to a second surface of the integrated circuit die;
- bonding the first substrate to a third substrate via a second plurality of solder bump structures;
- after bonding the first substrate to the third substrate, removing the second substrate from the second surface of the integrated circuit die;
- and
- disposing a heat sink on the second surface of the integrated circuit die.
A method for packaging an integrated circuit die, the method comprising:
- bonding a first surface of the integrated circuit die to a first substrate via a first plurality of solder bump structures;
- bonding a surface of the second substrate to a stiffening structure disposed proximate to the integrated circuit die, wherein the surface of the second substrate and a second surface of the integrated circuit die are facing each other;
- bonding the first substrate to a circuit board via a second plurality of solder bump structures;
- after bonding the first substrate to the circuit board, removing the second substrate from the stiffening structure;
- and
- disposing a heat sink on the second surface of the integrated circuit die.
Dependencies are inferred from the claim text.